21243376748

Names of 21243376748

• Cardinal: 21243376748 can be written as Twenty-one billion, two hundred forty-three million, three hundred seventy-six thousand, seven hundred forty-eight.

Scientific notation

• Scientific notation: 2.1243376748 × 10¹⁰

Factors of 21243376748

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 133

Divisors of 21243376748

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 11 22 23 44 46 92 97 194 253 388 506 529 1012 1058 1067 2116 2134 2231 4268 4462 5819 8924 9409 11638 18818 23276 24541 37636 49082 51313 98164 102626 103499 205252 206998 216407 413996 432814 564443 865628 912673 1128886 1825346 2257772 2380477 3650692 4760954 4977361 9521908 9954722 10039403 19909444 20078806 20991479 40157612 41982958 54750971 83965916 109501942 219003884 230906269 461812538 482804017 923625076 965608034 1931216068 5310844187 10621688374 21243376748
• Sum of all divisors σ(n): 42837105360
• Sum of proper divisors (its aliquot sum) s(n): 21593728612
• 21243376748 is an abundant number, because the sum of its proper divisors (21593728612) is greater than itself. Its abundance is 350351864

Bases of 21243376748

• Binary: 10011110010001101000011010001101100₂
• Hexadecimal: 0x4F234346C
• Base-36: 9RBRAEK

Squares and roots of 21243376748

• 21243376748 squared (21243376748²) is 451281055657467055504
• 21243376748 cubed (21243376748³) is 9586733484566729499469699020992
• The square root of 21243376748 is 145751.0780337491
• The cube root of 21243376748 is 2769.5413294345

Scales and comparisons

• 21,243,376,748 seconds is equal to 675 years, 24 weeks, 4 days, 9 hours, 59 minutes, 8 seconds.
• To count from 1 to 21,243,376,748 would take you about one thousand, three hundred fifty years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21243376748 cubic inches would be around 230.8 feet tall.

Recreational maths with 21243376748

• 21243376748 backwards is 84767334212
• The number of decimal digits it has is: 11
• The sum of 21243376748's digits is 47
• More coming soon!